• 117,5 mm (4-5/8 inches) cutting diameter and 38 mm hole saw depth. • Made of HSS M42 high-speed steel with 8% cobalt for extreme lifespan and durability. • Saw teeth with hardness equal to or greater than 65HRC resistant to rust and corrosion. • Includes chuck with 11 mm shank and titanium-plated center drill bit for greater strength. • Variable tooth pitch design that reduces vibrations and noise for a smoother cut. • Saw tooth thickness of 1,0 mm and height from 1,8 to 2,0 mm. • Equipped with a spring on the drill bit to automatically push the disc out of the saw after cutting. • Suitable for cutting thick wood, plywood, plastic, drywall, soft plaster, and thin metals.